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sensors Mode-S transponder

4CAE18

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-HXB · AIRBUS A-321neo

Hex
4CAE18
Octal
23127030
Decimal
5,025,304
Country
IE
Tail
EI-HXB
Type
A21N
Broadcasting now · callsign ITY058 · 35,000 ft
Flights observed
385
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 22:00 UTC

Current position

4CAE18 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CAE18 falls within the block assigned to Ireland (IE) by ICAO Annex 10, Volume III. Every aircraft registered in Ireland receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
ITY855 ITA Airways 18 2026-07-24
ITY895 - 17 2026-07-19
ITY894 - 17 2026-07-18
ITY854 ITA Airways 16 2026-07-24
ITY316 - 13 2026-07-16
ITY897 - 12 2026-07-13
ITY319 - 12 2026-07-16
ITY203 - 12 2026-07-23
ITY202 ITA Airways 12 2026-07-23
ITY896 - 10 2026-07-13
ITY108 - 9 2026-07-08
ITY107 - 9 2026-07-08
ITY061 ITA Airways 9 2026-07-25
ITY058 ITA Airways 9 2026-07-25
ITY853 ITA Airways 8 2026-07-16
ITY332 ITA Airways 8 2026-07-26
ITY715 - 7 2026-06-25
ITY317 - 7 2026-07-13
ITY810 ITA Airways 6 2026-07-20
ITY809 - 6 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ITY332 FCO → CDG Jul 26, 20:25 UTCJul 26, 22:00 UTC1h 35m
2026-07-26 ITY055 FCO → MAH Jul 26, 17:25 UTCJul 26, 18:25 UTC1h 0m
2026-07-26 ITY054 - Jul 26, 14:55 UTCJul 26, 16:10 UTC1h 15m
2026-07-25 ITY885 - Jul 25, 17:35 UTCJul 25, 18:45 UTC1h 10m
2026-07-25 ITY884 - Jul 25, 15:30 UTCJul 25, 16:25 UTC55m
2026-07-25 ITY061 MAD → FCO Jul 25, 10:00 UTCJul 25, 11:35 UTC1h 35m
2026-07-25 ITY058 FCO → MAD Jul 25, 06:35 UTCJul 25, 08:45 UTC2h 10m
2026-07-24 ITY855 DSS → FCO Jul 24, 23:55 UTCJul 25, 04:55 UTC5h 0m
2026-07-24 ITY854 FCO → DSS Jul 24, 14:40 UTCJul 24, 19:50 UTC5h 10m
2026-07-24 ITY061 MAD → FCO Jul 24, 09:55 UTCJul 24, 11:45 UTC1h 50m
2026-07-24 ITY058 FCO → MAD Jul 24, 06:30 UTCJul 24, 08:30 UTC2h 0m
2026-07-24 ITY717 ATH → FCO Jul 24, 03:20 UTCJul 24, 05:05 UTC1h 45m
2026-07-23 ITY722 - Jul 23, 20:40 UTCJul 23, 22:10 UTC1h 30m
2026-07-23 ITY407 FRA → FCO Jul 23, 16:45 UTCJul 23, 18:00 UTC1h 15m
2026-07-23 ITY404 FCO → FRA Jul 23, 14:00 UTCJul 23, 15:35 UTC1h 35m
2026-07-23 ITY203 - Jul 23, 10:05 UTCJul 23, 11:50 UTC1h 45m
2026-07-23 ITY202 FCO → LHR Jul 23, 06:15 UTCJul 23, 08:35 UTC2h 20m
2026-07-22 ITY095 VLC → FCO Jul 22, 16:00 UTCJul 22, 17:35 UTC1h 35m
2026-07-22 ITY094 FCO → VLC Jul 22, 12:55 UTCJul 22, 14:35 UTC1h 40m
2026-07-22 ITY077 - Jul 22, 11:10 UTCJul 22, 11:35 UTC25m
2026-07-22 ITY075 BCN → FCO Jul 22, 04:35 UTCJul 22, 05:25 UTC50m
2026-07-21 ITY078 FCO → BCN Jul 21, 20:25 UTCJul 21, 21:50 UTC1h 25m
2026-07-21 ITY807 - Jul 21, 12:45 UTCJul 21, 15:55 UTC3h 10m
2026-07-21 ITY806 FCO → TLV Jul 21, 08:10 UTCJul 21, 11:05 UTC2h 55m
2026-07-21 ITY809 - Jul 21, 02:15 UTCJul 21, 05:20 UTC3h 5m
2026-07-20 ITY810 FCO → TLV Jul 20, 21:30 UTCJul 21, 00:15 UTC2h 44m
2026-07-20 ITY325 - Jul 20, 17:55 UTCJul 20, 19:20 UTC1h 25m
2026-07-20 ITY324 - Jul 20, 14:55 UTCJul 20, 16:45 UTC1h 50m
2026-07-20 ITY203 - Jul 20, 10:05 UTCJul 20, 12:00 UTC1h 55m
2026-07-20 ITY202 FCO → LHR Jul 20, 06:05 UTCJul 20, 08:25 UTC2h 20m
2026-07-19 ITY207 - Jul 19, 17:10 UTCJul 19, 19:05 UTC1h 55m
2026-07-19 ITY204 - Jul 19, 12:55 UTCJul 19, 15:20 UTC2h 25m
2026-07-19 ITY437 - Jul 19, 10:00 UTCJul 19, 11:00 UTC1h 0m
2026-07-19 ITY432 FCO → MUC Jul 19, 07:00 UTCJul 19, 08:15 UTC1h 15m
2026-07-19 ITY895 - Jul 19, 02:05 UTCJul 19, 04:45 UTC2h 40m
2026-07-18 ITY894 - Jul 18, 20:40 UTCJul 18, 23:05 UTC2h 25m
2026-07-18 ITY1274 - Jul 18, 18:35 UTCJul 18, 19:00 UTC25m
2026-07-18 ITY1271 - Jul 18, 16:20 UTCJul 18, 16:45 UTC25m
2026-07-18 ITY807 - Jul 18, 11:50 UTCJul 18, 14:50 UTC3h 0m
2026-07-18 ITY806 FCO → TLV Jul 18, 07:40 UTCJul 18, 10:30 UTC2h 50m
2026-07-18 ITY809 - Jul 18, 02:14 UTCJul 18, 05:20 UTC3h 6m
2026-07-17 ITY810 - Jul 17, 21:20 UTCJul 18, 00:04 UTC2h 45m
2026-07-17 ITY325 CDG → FCO Jul 17, 16:44 UTCJul 17, 18:29 UTC1h 45m
2026-07-17 ITY324 - Jul 17, 13:29 UTCJul 17, 15:10 UTC1h 40m
2026-07-17 ITY203 - Jul 17, 09:50 UTCJul 17, 11:50 UTC2h 0m
2026-07-17 ITY202 - Jul 17, 06:10 UTCJul 17, 08:30 UTC2h 20m
2026-07-16 ITY853 ACC → FCO Jul 16, 14:10 UTCJul 17, 03:45 UTC13h 35m
2026-07-16 ITY319 - Jul 16, 10:00 UTCJul 16, 11:30 UTC1h 30m
2026-07-16 ITY316 FCO → CDG Jul 16, 06:45 UTCJul 16, 08:35 UTC1h 50m
2026-07-15 ITY807 - Jul 15, 11:50 UTCJul 15, 15:00 UTC3h 10m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the EI-HXB page for operator, model, and routing details .

Mode-S 4CAE18 frequently asked

What is Mode-S code 4CAE18?
4CAE18 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HXB.
Where is Mode-S 4CAE18 registered?
Mode-S code 4CAE18 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE18 broadcasting right now?
Yes. Mode-S 4CAE18 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAE18, octal 23127030, decimal 5,025,304.
What flights does 4CAE18 operate?
Mode-S 4CAE18 has broadcast 20 distinct callsigns, including ITY855, ITY895, ITY894, ITY854, ITY316.